One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,4)(5,6,8,9)(7,10,11,12)(13,14,20,25)(15,27,31,40)(16,33,36,23)(17,37,35,22)(18,26,19,24)(21,32,41,30)(28,38,34,44)(29,39,42,43)(6,9)(10,12)(13,15,19,32,20,31,18,30)(14,21,26,40,25,41,24,27)(16,34,17,29,36,28,35,42)(22,38,23,39,37,44,33,43)(5,7)(6,10)(8,11)(9,12)(13,16,20,36)(14,22,25,37)(15,28,31,34)(17,19,35,18)(21,38,41,44)(23,26,33,24)(27,39,40,43)(29,30,42,32)(2,4)(7,11)(10,12)(13,17,18,16,20,35,19,36)(14,23,24,22,25,33,26,37)(15,29,30,34,31,42,32,28)(21,39,27,38,41,43,40,44)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.